Transaction Details

Footnotes

The price reported in Column 4 is a weighted average price in US Dollars and reflects the conversion of EURO to USD at an exchange rate of $1.1741 to EURO 1.00 as of December 17, 2025. The shares were sold in multiple transactions at prices ranging from $4.24 to $5.23 per share, inclusive. The reporting person unterakes to provide DBV Technologies S.A., any security holder of DBV Technologies S.A., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in footnotes 1 and 4 of this Form 4. | Bpifrance Participations S.A. ("Bpifrance Participations") directly owns the reported shares. Bpifrance Participations is a subsidiary owned at 99.99% by Bpifrance S.A. ("Bpifrance"). Bpifrance is jointly owned by Caisse des Depots et Consignations ("CDC") at 49.2% and EPIC Bpifrance ("EPIC") at 49.2%. CDC and EPIC jointly control Bpifrance. | The price reported in Column 4 reflects the conversion of EURO to USD at an exchange rate of $1.1741 to EURO 1.00 as of December 17, 2025. | The price reported in Column 4 is a weighted average price in US Dollars and reflects the conversion of EURO to USD at an exchange rate of $1.1727 to EURO 1.00 as of December 18, 2025 . The shares were sold in multiple transactions at prices ranging from $3.79 to $4.32 per share, inclusive. | Innobio FPCI ("Innobio") directly owns the reported shares. Innobio is a fund managed by Bpifrance Investissement S.A.S. ("Bpifrance Investissement"), a subsidiary owned at 100% by Bpifrance Participations.